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US 2014/0191536 A1Published application
Method, vehicle reinforcement & vehicle
AssigneeVolvo Car Corporation
InventorsJens Elfwing, Michael Wehrend, Johan Nedemo, Kristoffer Trana
Life of this patent
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Abstract
A method of manufacturing a vehicle reinforcement includes the step of a) joining a first portion comprising boron steel to a second portion comprising more ductile material than boron steel to form a vehicle reinforcement, and b) heat treating at least one part of the first portion after the joining so that the vehicle reinforcement comprises at least one hardened zone of boron steel and at least one soft zone of more ductile material than boron steel.
Claims17
A method of manufacturing a vehicle reinforcement, the method comprising:
- joining a first portion comprising boron steel to a second portion comprising more ductile material than boron steel to form a vehicle reinforcement;
- and
- heat treating at least one part of the first portion after the joining so that the vehicle reinforcement comprises at least one hardened zone of boron steel and at least one soft zone of more ductile material than boron steel.
A vehicle reinforcement comprising:
- a first portion that comprises boron steel;
- and
- a second portion that comprises more ductile material than boron steel;
- wherein the first portion and the second portion are connected by a joint, and wherein at least one part of the first portion has been heat treated after the first portion has been joined to the second portion so that the vehicle reinforcement comprises at least one hardened zone of boron steel and at least one soft zone of more ductile material than boron steel.
1 more element
Dependencies are inferred from the claim text.